SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g=14-20

被引：988

作者：

Yanny, Brian ^{[1
]}

Rockosi, Constance ^{[2
]}

Newberg, Heidi Jo ^{[3
]}

Knapp, Gillian R. ^{[4
]}

Adelman-McCarthy, Jennifer K. ^{[1
]}

Alcorn, Bonnie ^{[1
]}

Allam, Sahar ^{[1
]}

Prieto, Carlos Allende ^{[5
,6
,7
]}

An, Deokkeun ^{[8
]}

Anderson, Kurt S. J. ^{[9
,10
]}

Anderson, Scott ^{[11
]}

Bailer-Jones, Coryn A. L. ^{[12
]}

Bastian, Steve ^{[1
]}

Beers, Timothy C. ^{[13
,14
]}

Bell, Eric ^{[12
]}

Belokurov, Vasily ^{[15
]}

Bizyaev, Dmitry ^{[9
]}

Blythe, Norm ^{[9
]}

Bochanski, John J. ^{[11
]}

Boroski, William N. ^{[1
]}

Brinchmann, Jarle ^{[16
]}

Brinkmann, J. ^{[9
]}

Brewington, Howard ^{[9
]}

Carey, Larry ^{[11
]}

Cudworth, Kyle M. ^{[17
]}

Evans, Michael ^{[11
]}

Evans, N. W. ^{[15
]}

Gates, Evalyn ^{[17
]}

Gaensicke, B. T. ^{[18
]}

Gillespie, Bruce ^{[9
]}

Gilmore, Gerald ^{[15
]}

Gomez-Moran, Ada Nebot ^{[19
]}

Grebel, Eva K. ^{[20
]}

Greenwell, Jim ^{[11
]}

Gunn, James E. ^{[4
]}

Jordan, Cathy ^{[9
]}

Jordan, Wendell ^{[9
]}

Harding, Paul ^{[21
]}

Harris, Hugh ^{[22
]}

Hendry, John S. ^{[1
]}

Holder, Diana ^{[9
]}

Ivans, Inese I. ^{[4
]}

Ivezic, Zeljko

Jester, Sebastian

Johnson, Jennifer A.

Kent, Stephen M. ^{[1
]}

Kleinman, Scot

Kniazev, Alexei

Krzesinski, Jurek ^{[9
]}

Kron, Richard ^{[17
]}

机构：

[1] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[2] Univ Calif Santa Cruz, UCO, Lick Observ, Santa Cruz, CA 95064 USA

[3] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA

[4] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[5] Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA

[6] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

[7] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[8] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[9] Apache Point Observ, Sunspot, NM 88349 USA

[10] New Mexico State Univ, Dept Astron, Las Cruces, NM 88003 USA

[11] Univ Washington, Dept Astron, Seattle, WA 98195 USA

[12] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[13] Michigan State Univ, Dept Phys & Astron, Ctr Study Cosm Evolut, E Lansing, MI 48824 USA

[14] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA

[15] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[16] Univ Porto, Ctr Astrofis, P-4150762 Oporto, Portugal

[17] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[18] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[19] Astrophys Inst Potsdam, D-14482 Potsdam, Germany

[20] Heidelberg Univ, Zentrum Astron, Astron Rech Inst, D-69120 Heidelberg, Germany

[21] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA

[22] US Naval Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA

[23] Amer Museum Nat Hist, Dept Astrophys, New York, NY 10024 USA

[24] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[25] CALTECH, IPAC, Pasadena, CA 91125 USA

[26] Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia

[27] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[28] Univ Ljubljana, Dept Phys, Ljubljana 1000, Slovenia

[29] Drexel Univ, Philadelphia, PA 19104 USA

[30] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[31] Univ Valparaiso, Fac Ciencias, Dept Fis & Astron, Valparaiso, Chile

[32] Austin Peay State Univ, Dept Phys & Astron, Clarksville, TN 37040 USA

[33] Adler Planetarium & Astron Museum, Chicago, IL 60605 USA

[34] Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, Baltimore, MD 21218 USA

[35] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA

[36] Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India

[37] Texas Tech Univ, Dept Phys, Lubbock, TX 79409 USA

来源：

ASTRONOMICAL JOURNAL | 2009年 / 137卷 / 05期

基金：

美国国家科学基金会;

关键词：

Galaxy: halo; Galaxy: stellar content; Galaxy: structure; stars: abundances; stars: fundamental parameters; stars: general; DIGITAL-SKY-SURVEY; COMMON-ENVELOPE BINARIES; SURVEY COMMISSIONING DATA; RADIAL-VELOCITY SPECTROMETER; SURVEY PHOTOMETRIC SYSTEM; ULTRACOOL WHITE-DWARFS; SURVEY IMAGING DATA; 1ST DATA RELEASE; MILKY-WAY; LUMINOSITY FUNCTION;

D O I：

10.1088/0004-6256/137/5/4377

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Sloan Extension for Galactic Understanding and Exploration (SEGUE) Survey obtained approximate to 240,000 moderate-resolution (R similar to 1800) spectra from 3900 angstrom to 9000 angstrom of fainter Milky Way stars (14.0 < g < 20.3) of a wide variety of spectral types, both main-sequence and evolved objects, with the goal of studying the kinematics and populations of our Galaxy and its halo. The spectra are clustered in 212 regions spaced over three quarters of the sky. Radial velocity accuracies for stars are sigma(RV) similar to 4 km s(-1) at g < 18, degrading to s(RV) similar to 15 km s(-1) at g similar to 20. For stars with signal-to-noise ratio > 10 per resolution element, stellar atmospheric parameters are estimated, including metallicity, surface gravity, and effective temperature. SEGUE obtained 3500 deg(2) of additional ugriz imaging (primarily at low Galactic latitudes) providing precise multicolor photometry (sigma(g, r, i) similar to 2%), (sigma(u, z) similar to 3%) and astrometry (approximate to 0 ''.1) for spectroscopic target selection. The stellar spectra, imaging data, and derived parameter catalogs for this survey are publicly available as part of Sloan Digital Sky Survey Data Release 7.

引用

页码：4377 / 4399

页数：23

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